<template>
  <view>
    <view class="fixed">
      <cu-custom :is-back="true" bg-color="bg-shadeTop text-white">
        <block slot="backText">返回</block>
        <block slot="content">垂直导航</block>
      </cu-custom>
    </view>
    <swiper
      class="screen-swiper round-dot"
      :indicator-dots="true"
      :circular="true"
      :autoplay="true"
      interval="5000"
      duration="500"
    >
      <swiper-item v-for="(item, index) in 4" :key="index">
        <image
          :src="'https://ossweb-img.qq.com/images/lol/web201310/skin/big3900' + index + '.jpg'"
          mode="aspectFill"
        />
      </swiper-item>
    </swiper>
    <view class="VerticalBox">
      <scroll-view
        class="VerticalNav nav"
        scroll-y
        scroll-with-animation
        :scroll-top="verticalNavTop"
        style="height: calc(100vh - 375upx);"
      >
        <view
          v-for="(item, index) in list"
          :key="index"
          class="cu-item"
          :class="index == tabCur ? 'text-green cur' : ''"
          :data-id="item.id"
          @tap="TabSelect"
        >
          {{ item.cateName }}
        </view>
      </scroll-view>
      <scroll-view
        class="VerticalMain"
        scroll-y
        scroll-with-animation
        style="height: calc(100vh - 375upx);"
        :scroll-into-view="'main-' + mainCur"
        @scroll="VerticalMain"
      >
        <view
          v-for="(item, index) in list"
          :id="'main-' + index"
          :key="index"
          class="padding-top"
        >
          <view class="cu-bar solid-bottom bg-white">
            <view class="action">
              <text class="cuIcon-title text-green" /> {{ item.cateName }}</view>
          </view>
          <view class="cu-list menu-avatar">
            <view class="cu-item">
              <view
                class="cu-avatar round lg"
                style="background-image: url(https://ossweb-img.qq.com/images/lol/web201310/skin/big10001.jpg);"
              />
              <view class="content">
                <view class="text-grey">凯尔</view>
                <view class="text-gray text-sm flex">
                  <text class="text-cut">
                    <text class="cuIcon-infofill text-red  margin-right-xs" />
                    我已天理为凭，踏入这片荒芜，不再受凡人的枷锁遏制。我已天理为凭，踏入这片荒芜，不再受凡人的枷锁遏制。
                  </text>
                </view>
              </view>
              <view class="action">
                <view class="text-grey text-xs">22:20</view>
                <view class="cu-tag round bg-grey sm">5</view>
              </view>
            </view>
            <view class="cu-item">
              <view
                class="cu-avatar round lg"
                style="background-image: url(https://ossweb-img.qq.com/images/lol/img/champion/Taric.png);"
              >
                <view class="cu-tag badge">99+</view>
              </view>
              <view class="content">
                <view class="text-grey">
                  <text class="text-cut">瓦洛兰之盾-塔里克</text>
                  <view class="cu-tag round bg-orange sm">战士</view>
                </view>
                <view class="text-gray text-sm flex">
                  <text class="text-cut">
                    塔里克是保护者星灵，用超乎寻常的力量守护着符文之地的生命、仁爱以及万物之美。塔里克由于渎职而被放逐，离开了祖国德玛西亚，前去攀登巨神峰寻找救赎，但他找到的却是来自星界的更高层的召唤。现在的塔里克与古代巨神族的神力相融合，以瓦洛兰之盾的身份，永不疲倦地警惕着阴险狡诈的虚空腐化之力。
                  </text>
                </view>
              </view>
              <view class="action">
                <view class="text-grey text-xs">22:20</view>
                <view class="cuIcon-notice_forbid_fill text-gray" />
              </view>
            </view>
            <view class="cu-item ">
              <view
                class="cu-avatar radius lg"
                style="background-image: url(https://ossweb-img.qq.com/images/lol/img/champion/Morgana.png);"
              />
              <view class="content">
                <view class="text-pink"><text class="text-cut">莫甘娜</text></view>
                <view class="text-gray text-sm flex">
                  <text class="text-cut">凯尔，你被自己的光芒变的盲目！</text></view>
              </view>
              <view class="action">
                <view class="text-grey text-xs">22:20</view>
                <view class="cu-tag round bg-red sm">5</view>
              </view>
            </view>
            <view class="cu-item grayscale">
              <view
                class="cu-avatar radius lg"
                style="background-image: url(https://ossweb-img.qq.com/images/lol/web201310/skin/big81007.jpg);"
              />
              <view class="content">
                <view><text class="text-cut">伊泽瑞尔</text>
                  <view class="cu-tag round bg-orange sm">断开连接...</view>
                </view>
                <view class="text-gray text-sm flex">
                  <text class="text-cut"> 等我回来一个打十个</text></view>
              </view>
              <view class="action">
                <view class="text-grey text-xs">22:20</view>
                <view class="cu-tag round bg-red sm">5</view>
              </view>
            </view>
            <view class="cu-item cur">
              <view
                class="cu-avatar radius lg"
                style="background-image: url(https://ossweb-img.qq.com/images/lol/web201310/skin/big81020.jpg);"
              >
                <view class="cu-tag badge" />
              </view>
              <view class="content">
                <view>
                  <text class="text-cut">瓦罗兰大陆-睡衣守护者-新手保护营</text>
                  <view class="cu-tag round bg-orange sm">6人</view>
                </view>
                <view class="text-gray text-sm flex">
                  <text class="text-cut">
                    伊泽瑞尔：<text class="cuIcon-locationfill text-orange margin-right-xs" />
                    传送中...</text></view>
              </view>
              <view class="action">
                <view class="text-grey text-xs">22:20</view>
                <view class="cuIcon-notice_forbid_fill text-gray" />
              </view>
            </view>
          </view>
        </view>
      </scroll-view>
    </view>
  </view>
</template>

<script>
import { getCategory } from '@/api/store'
export default {
  data() {
    return {
      list: [],
      tabCur: 0,
      mainCur: 0,
      verticalNavTop: 0,
      load: true
    }
  },
  onLoad() {
    uni.showLoading({
      title: '加载中...',
      mask: true
    })
    const that = this
    that.loadCategory()
    // const list = [{}]
    // for (let i = 0; i < 26; i++) {
    //   list[i] = {}
    //   list[i].name = String.fromCharCode(65 + i)
    //   list[i].id = i
    // }
    // this.list = list
    // this.listCur = list[0]
  },
  onReady() {
    uni.hideLoading()
  },
  methods: {
    loadCategory() {
      const that = this
      getCategory().then(res => {
        that.list = res.data
      }, err => { console.error(err) })
    },
    TabSelect(e) {
      this.tabCur = e.currentTarget.dataset.id
      this.mainCur = e.currentTarget.dataset.id
      this.verticalNavTop = (e.currentTarget.dataset.id - 1) * 50
    },
    VerticalMain(e) {
      // #ifdef MP-ALIPAY
      return false // 支付宝小程序暂时不支持双向联动
      // #endif
      const that = this
      let tabHeight = 0
      if (this.load) {
        for (let i = 0; i < this.list.length; i++) {
          const view = uni.createSelectorQuery().select('#main-' + this.list[i].id)
          view
            .fields(
              {
                size: true
              },
              (data) => {
                this.list[i].top = tabHeight
                tabHeight = tabHeight + data.height
                this.list[i].bottom = tabHeight
              }
            )
            .exec()
        }
        this.load = false
      }
      const scrollTop = e.detail.scrollTop + 10
      for (let i = 0; i < this.list.length; i++) {
        if (scrollTop > this.list[i].top && scrollTop < this.list[i].bottom) {
          this.verticalNavTop = (this.list[i].id - 1) * 50
          this.tabCur = this.list[i].id
          console.log(scrollTop)
          return false
        }
      }
    }
  }
}
</script>

<style>
  .fixed {
    position: fixed;
    z-index: 99;
  }

  .VerticalNav.nav {
    width: 200upx;
    white-space: initial;
  }

  .VerticalNav.nav .cu-item {
    position: relative;
    width: 100%;
    height: 50px;
    margin: 0;
    text-align: center;
    background-color: #fff;
    border: none;
  }

  .VerticalNav.nav .cu-item.cur {
    background-color: #f1f1f1;
  }

  .VerticalNav.nav .cu-item.cur::after {
    position: absolute;
    top: 0;
    right: 0upx;
    bottom: 0;
    width: 8upx;
    height: 30upx;
    margin: auto;
    background-color: currentColor;
    border-radius: 10upx 0 0 10upx;
    content: '';
  }

  .VerticalBox {
    display: flex;
  }

  .VerticalMain {
    background-color: #f1f1f1;
    flex: 1;
  }
</style>
